June 3, 2010 – Mangrove Employer Services has added HR veteran Jim Costello as chief operating officer. Mr. Costello has over 30 years in the payroll, human resources and benefits outsourcing industries. He has held senior leadership positions in sales, operations, and customer support for outsourcing companies including Bank of America, ADP, and Genesys Software Systems, and was a founding member and general manager of Employeematters.com, an Intuit company. Over the last four years, Mr. Costello has served as president of Payroll Associates, overseeing the largest payroll software licensee base in the country. Founded in 1994, Mangrove is a provider of payroll, human resource management and benefits administration software and services that are designed for workforce empowerment for mid-market clients.